Stool



FIG. 1 is a perspective view of a stool embodying the design of the present invention.

FIG. 2 is a front elevational view of the stool as illustrated in FIG. 1.

FIG. 3 is a rear elevational view of the stool as illustrated in FIG. 1.

FIG. 4 is a side elevational view of a stool as illustrated in FIG.1.

The side of the stool not shown is a narrow image of the side shown in FIG. 4. 

The ornamental design for a stool, substantially as shown and described. 